Senior Full-Stack Engineer, AI-Powered Automation & Testing

Jackalope Digital LLC; United Kingdom; Hybrid; GBP 90,000 - 140,000; Full time

Benefits offered by this job

Health & wellness benefits

Hybrid work model

Job summary

Roku is seeking a Senior Software Engineer to join the Embedded Software Automation and Tools team to build full-stack applications and services that support end-to-end automation and test infrastructure.

You will design and deliver scalable APIs and microservices, focus on performance, reliability, and AI-enabled capabilities, and collaborate with cross-functional partners across the Roku ecosystem.

Qualifications

• 7+ years of proven full stack engineering experience with production web applications and backend services.
• Strong skills and programming experience in Python.
• Experience developing web applications using FastAPI, Flask, or Django.
• Experience with frontend development in TypeScript/JavaScript, Next.js, React, and MUI frameworks.
• Familiarity with PostgreSQL, Redis, and REST API design and integration.
• Experience with test-driven development, CI/CD workflows, and continuous integration tools (Jenkins, GitLab).
• Experience integrating AI technologies such as Skills, Agents, MCP Servers, or RAG pipelines.
• Understanding of authentication and authorization approaches including OpenID and SAML.
• Experience deploying cloud-native services on AWS with containerized infrastructure and Kubernetes.
• Experience with message queuing systems such as RabbitMQ or Apache Kafka.
• Demonstrated AI and agentic-tooling fluency per the section above.
• Strong problem-solving and technical troubleshooting skills.
• A self-directed professional able to work independently.
• Ability to work through ambiguous requirements and adapt to change.
• Comfortable working with cross-functional peers and internal stakeholders across European and US timezones.
• Excellent communication and collaborative skills.
• Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field

Responsibilities

• Design and build full stack web applications to support end-to-end automation and test infrastructure
• Integrate AI capabilities including LLM-driven experiences in existing and new toolsets
• Develop APIs and microservices to support test and quality workflows
• Deploy, scale, and monitor services in cloud environments using Kubernetes
• Build robust, highly available backend and frontend systems for software quality and automation use cases
• Collaborate with cross-functional teams to define and deliver external partner-facing and internal tooling
• Architect and own technical solutions and designs, evaluating design alternatives and trade-offs to deliver pragmatic, scalable, reliable, and maintainable solutions
• Create and maintain requirement and technical documentation, clearly defining user requirements, expected product behaviour, and relevant technical constraints
• Troubleshoot production issues and improve performance and reliability, enabling widespread adoption and use
• Participate in code reviews and contribute to engineering best practices
• Mentor less experienced engineers through technical guidance and architectural reviews

Skills

Python

TypeScript/JavaScript

React

Next.js

Frontend development

Kubernetes

AWS

AI capabilities

Problem solving

Independent

Education

Bachelor's or Master's in CS or related field

Tools

FastAPI

Flask

Django

PostgreSQL

Redis

REST API

Jenkins

GitLab

RabbitMQ

Job description

Roku is seeking a Senior Software Engineer to join the Embedded Software Automation and Tools team to build full-stack applications and services that support end-to-end automation and test infrastructure.

You will design and deliver scalable APIs and microservices, focus on performance, reliability, and AI-enabled capabilities, and collaborate with cross-functional partners across the Roku ecosystem.